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UCI School of Engineering Outstanding Faculty Service Award

Popular Mechanics Breakthrough Award

Orange County Engineering Council Outstanding Engineering Educator Award

Enhanced adhesion in two-photon polymerization direct laser writing

Plate-nanolattices at the theoretical limit of stiffness and strength

A versatile numerical approach for calculating the fracture toughness and R-curves of cellular materials

Magnetoelastic Metamaterials for Energy Dissipation and Wave Filtering

Nanolattices: An Emerging Class of Mechanical Metamaterials

Ultralight Metallic Microlattices

Prof. Valdevit received his MS degree (Laurea) in Materials Engineering from the University of Trieste, Italy (in 2000) and his PhD degree in Mechanical and Aerospace Engineering from Princeton University (in 2005). He worked as an intern at the IBM T.J. Watson Research Center and as a post-doctoral scholar at the University of California, Santa Barbara. He joined the faculty in the Mechanical and Aerospace Engineering Department at the University of California, Irvine in 2007. In 2018, he moved his appointment to the newly established Department of Materials Science and Engineering, where is currently a professor.  He is serving as the inaugural director of the Institute for Design and Manufacturing Innovation in the School of Engineering. 

Prof. Valdevit works in the general area of mechanics of materials, developing analytical, numerical and experimental techniques across multiple length scales. His primary research goal is the optimal design, modeling, fabrication and experimental characterization of metamaterials and structures with unprecedented combinations of properties. Some key research accomplishments have been the development and optimization of multifunctional sandwich panels for thermo-structural applications (including hypersonics), the mechanical characterization, numerical modeling and optimal design of ultralight hollow micro-lattices and 2D and 3D shape-reconfigurable materials, the development of novel topology optimization algorithms for the optimal design of architected materials with complex unit cell designs, and the advancement of novel additive manufacturing processes (in particular two-photon polymerization Direct Laser Writing, Direct Metal Laser Sintering and Cold Spray).

3D Printing & Additive Manufacturing

Architected Materials

Advanced Manufacturing

Materials Science

Metamaterials

Aerospace Engineering

Samueli School of Engineering Profile

Personal Website

ResearchGate Citations

Google Scholar Citations

New Crush-Resistant Metamaterials can Prevent Failure of Structures

Crushing It

New carbon nanostructure is stronger than diamonds

Carbon Nanostructure Stronger Than Diamonds

“Stronger Than Diamonds” Carbon Nanostructure Designed – Reaches Theoretical Limit of Performance

Electronic components on trenched substrates and method of forming same

Elliptic c4 with optimal orientation for enhanced reliability in electronic packages

Self calibrating micro-fabricated load cells

Professor, Materials Science and Engineering and Director, Institute for Design and Manufacturing Innovation

Haghpanah, Babak, Ladan Salari‐Sharif, Peyman Pourrajab, Jonathan Hopkins, and Lorenzo Valdevit. "Multistable Shape Reconfigurable Architected Materials." Advanced Materials 28, no. 36 (2016): 7915-7920.

Reconfigurable Shape

Scientists might have reached the theoretical limit of how strong this particular material can get, designing the first-ever super-light carbon nanostructure that’s stronger than diamond.
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Carbon is a famously versatile element in the diversity of structures it can take, from graphite like in the tip of a pencil to a diamond. Both are just pure carbon, but with atoms arranged in different patterns. 

The latest development in the nanoworld of carbon comes from a team that has designed something called carbon plate-nanolattices. Under a scanning electron microscope, they look like little cubes, and the math indicated that this structure would be incredibly strong, but it’s been too difficult to actually make, until now.

The team’s success was made possible by a 3D printing process called two-photon polymerization direct laser writing, which is essentially 3D printing on the level of atoms and photons.

Find out more about this technique and what the result could mean for the future of medicine, electronics aerospace and more in this Elements. 

#carbon #diamonds #nanotubes #aerospace #seeker #Science #elements 

Read More: 
Curious about two-photon lithography? The clip at 1:30 shows a microscopic castle designed by Daniela Mitterberger and Tiziano Derme being printed using this technique. The castle is so tiny that it fits ON THE TIP OF A PENCIL! How cool is that?! This art project is a collaboration between researchers at the Institute of Materials Science and Technology of the TU Wien (Technische Universität Wien, Austria), and design studio MAEID. A recent TU Wien spin-off UpNano is now commercializing this high-resolution 3D printing technology and materials. You can check out more impressive structures by UpNano on Twitter at https://twitter.com/upnano_gmbh and explore MAEID Studio at https://www.maeid.com/

Plate-nanolattices at the theoretical limit of stiffness and strength
https://www.nature.com/articles/s41467-020-15434-2
"Here, we present a new class of nanolattices, constructed from closed-cell plate-architectures."

UCI-led team designs carbon nanostructure stronger than diamonds
https://news.uci.edu/2020/04/13/uci-led-team-designs-carbon-nanostructure-stronger-than-diamonds/
"Nanolattices hold great promise for structural engineers, particularly in aerospace, because it’s hoped that their combination of strength and low mass density will greatly enhance aircraft and spacecraft performance."

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This Photon-Printed Carbon Is Stronger Than Diamond

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